The aniline oligomers can be positioned within the molecular structure of other polymers, thus painter acting with the side groups of the main polymer or acting as a comonomer in their backbone.
A series of main-chain polyurethanes containing sulfonyl-based NLO chromophores in the polymer backbone were prepared, the subtle structure of the chromophore moieties could be easily modified to adjust the property of the resultant polymers.
The two polymers have the same π-conjugation with the main structural difference being the presence of the spiro-anthracenyl substituents orthogonal to the polymer backbone of P2i.
The main feature is the oxidation of the thiophene-EDOT-EDOT-thiophene segment in the polymer backbone, at +265 mV.
The reaction was found to proceed in good yield without undesired side reactions via the formation of a succinimide intermediate in the polymer backbone, which was efficiently converted to polyaspartamide accompanying the α,β isomerization of the main chain.
One main concern about polymeric nanoparticles in gene delivery is coupling of the interior and exterior composition of them with polymer backbone and affects all the functions and biophysical properties of the polymer/DNA particles.
The main difference between 1 and conjugated organic polymers used for explosives detection is the incorporation of a silacycle moiety into the polymer backbone.
The conducting polymers manifest electron delocalization arising from conjugated double bonds in a polymer backbone.
